Ruido magnético Barkhausen para el estudio de la anisotropía magnética en aceros inoxidables

ABSTRACT The magnetic Barkhausen noise (MBN) is a phenomenon that occurs in ferromagnetic materials when they are exposed to slowly varying magnetic fields, generating discrete jumps in their magnetization. These jumps are produced by the movement of the magnetic domain walls. They can be detected by a small coil allocated on the sample surface. The movement of the domain wall is regulated by the microstructure of the material (precipitates, grain size, residual stresses, etc.). Through this indirect way it is possible to characterize the material. In this work MBN measurements to study magnet...